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FR893643A - Diving telescope and porthole for panoramic exploration of the seabed and underwater spaces - Google Patents

Diving telescope and porthole for panoramic exploration of the seabed and underwater spaces

Info

Publication number
FR893643A
FR893643AFR893643DAFR893643AFR 893643 AFR893643 AFR 893643AFR 893643D AFR893643D AFR 893643DAFR 893643 AFR893643 AFR 893643A
Authority
FR
France
Prior art keywords
porthole
diving
panoramic
seabed
telescope
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Henri Dreyfus
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Application grantedgrantedCritical
Publication of FR893643ApublicationCriticalpatent/FR893643A/en
Expiredlegal-statusCriticalCurrent

Links

Classifications

Landscapes

FR893643D1943-05-141943-05-14 Diving telescope and porthole for panoramic exploration of the seabed and underwater spacesExpiredFR893643A (en)

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
FR893643T1943-05-14

Publications (1)

Publication NumberPublication Date
FR893643Atrue FR893643A (en)1944-08-08

Family

ID=9390155

Family Applications (1)

Application NumberTitlePriority DateFiling Date
FR893643DExpiredFR893643A (en)1943-05-141943-05-14 Diving telescope and porthole for panoramic exploration of the seabed and underwater spaces

Country Status (1)

CountryLink
FR (1)FR893643A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US3027562A (en)*1960-07-061962-04-03James K WidenorSkin diver's mask
US3186005A (en)*1962-08-021965-06-01Sea All IncUnderwater face mask
US5345615A (en)*1993-07-091994-09-13Htm Sport S.P.A.Wide viewfield underwater mask
EP0860184A1 (en)*1997-02-241998-08-26Holding Financière M.K.Diving mask with extended field of vision
US6006367A (en)*1998-02-191999-12-28Webster; Colin WesleySwimming goggles
USRE37816E1 (en)1991-08-282002-08-13Jon KranhouseDiving mask with lenses and method of fabricating the same
EP1319592A3 (en)*2001-12-122010-11-03Bruno MeroniDiving mask
IT202000002326A1 (en)*2020-02-062021-08-06Mares Spa Diving mask

Cited By (8)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US3027562A (en)*1960-07-061962-04-03James K WidenorSkin diver's mask
US3186005A (en)*1962-08-021965-06-01Sea All IncUnderwater face mask
USRE37816E1 (en)1991-08-282002-08-13Jon KranhouseDiving mask with lenses and method of fabricating the same
US5345615A (en)*1993-07-091994-09-13Htm Sport S.P.A.Wide viewfield underwater mask
EP0860184A1 (en)*1997-02-241998-08-26Holding Financière M.K.Diving mask with extended field of vision
US6006367A (en)*1998-02-191999-12-28Webster; Colin WesleySwimming goggles
EP1319592A3 (en)*2001-12-122010-11-03Bruno MeroniDiving mask
IT202000002326A1 (en)*2020-02-062021-08-06Mares Spa Diving mask

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